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B a. d 0 M O m Patented June 16 Ill-l 7%, W- MM ATTORNEYS.

. in position for extracting the shell.

UNITED STATES PATENT OFFICE.

MANUEL vIcTOR DENGO, OF SAN JosE, COSTA RICA.

BREECH-LOADING FIREARM.

SPECIFICATION forming part of Letters Patent No. 562,286,11ated .1 une16, 1896.

Application filed November 15, 1895. Serial No. 569,064. (No model.)

To all whom it may concern.-

Beit known thatLMANUEL VICTOR DENGO', of San J os, Costa Rica, CentralAmerica, have invented a new and Improved Breech-Loading Firearm, ofwhich the following is a full, clear, and exact description.

The object of the invention is to provide a new and improvedbreech-loading firearm, which is simple and durable in construction,easily manipulated, arranged to securely hold the breech-block inposition when firing, and to readily extract the shell.

The invention consists principally of a breech-block controlled duringpart of its closing movement by the hammer and the remainder by aspring, so as to seat the breechblock in advance of the hammer.

The invention also consists of certain parts and details andcombinations of the same, as will be fully described hereinafter, andthen pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a side elevation of the improvement. Fig. 2 is alongitudinal section taken through the breech mechanism of the firearm,the operative parts of the device being shown in elevation. Fig. 3 is alike view of the same with the parts in position after firing. Fig. l isa similar view of the same with the parts Fig. 5 is a like view-of thesame with the hammer in a safety position. Fig. 6 is a plan view of thelink and push-bar. Fig. 7 is a plan view of the ejector. Fig. 8 is aside view of the breech-block detached, and Fig. 9 is a front end viewthereof. Fig.10 is a side elevation of the hammer, and Fig. 11 is afront end elevation of the same.

The improved firearm is provided with a SllltflblY-COllStl'llCtOd stockA, on which is semred the barrel B, adapted to be closed at its veechend by a breech-block C, fulcrumed G in the stock A. 'lhebreeeh-block Ccar- -s the usual firing-pin D, adapted to be ac- .ated by a hammer E, fulcrumed at E in the ock A and pressed on by the 'usual main- .a'ing F,said firing-pin being, notched, as ,n 111 dotted lines in the drawings,and havits notch engagedbya screw or pinonthe breech-block C, so as tobe held in plac in the breech-block.

The hammer E is providedwith an extension E formed with a shoulder E anda notch E adapted to be engaged by the sear G, formed integrally withthe trigger G, likewise pivoted in the stock A and extending with itsfingerpiece into the trigger-guard, as indicated in the drawin gs, saidtrigger being provided with- On the pivoted end of the breech-bdock isformed a shoulder 0 adapted to be engaged by the free end of a spring J,mounted in the stock A, and serving to draw the breechblock 0 quickly toa seated position on the breech end of the barrel B, when the firingpinis about to be operated by the hammer. As clearly shown in the drawings,the point at which the link I is pivoted to the hammer is a greaterdistance from the fulcrum E of the hammer than the distance from the pivotpoint of the link on the breech-block from the pivot-point C of thebreech-block. By this arrangement the breech-block is caused to travelin advance of the hammer, since it will move faster than the hammer, andthe spring J is so arranged as to engage the shoulder 0 on thebreech-block just before the breech-block seats itself on the barrel,whereby said spring will impart to the moving breech-block a stillgreater velocity, this being permitted by the loose connection betweenthe link I and the breech-block. The slotted connection between the linkand the breech-block permits the hammer to move a certaindistanceafter'the breech-block has been seated on the barrel, so as topermit said hammer to operate the firing-pin.

The link I is pivotally connected with a push-bar K, extendingforwardly, and pro- IOO vided at its free end with an upwardly-extendingspur-or lug K, adapted to engage a notch L in the ejector-rod L, pressedby a spring N, and fitted to slide longitudinally in the stock A. Therearward-sliding motion of the ejector-rod L is limited by a stop-collarL as is plainly shown in the drawings. The forward end of theejector-rod L is adapted to engage an ejector 0, arranged to Y pin heldin the stock and engaging a slot or recess 0 in one side of the ejectorO.

In the ejector-rod L is formed a second notch L adapted to be engaged bythe free hook end of a springdog P, held in the stock. The ejector-rodis prevented from turning by a screw J, engaging a longitudinal recessin the said ejector-rod, said screw also serving to fasten the spring Jin place in the stock. The hook end of the spring-dog P is adapted to beengaged by a lug K held on the free end of the push-bar K, to move saidspringdog out of engagement with the notch L whenever the bar K isdepressed, as will be hereinafter explained, to release said ejectorrodand to move the ejector O outward to withdraw the shell from the barrel.

The free end of the push-bar K is provided with a lug K adapted toengage a fixed inclined arm R, held within the stock A, so that saidpush-bar K is moved out of contact at its end K with the notch Lwhenever the hammer-E is drawn into its rearmost position, as shown inFig. 4. A spring S is seeuredin place in the stock A under the said armR, and the spring S engages the under side of the push-bar K, tonormally press the end K in engagement with the under side of theejector-rod L, to cause the free end K to snap into the notch L wheneverthe two are in register. A spring T, held in the top of the barrel B,engages with its free end the top of the cartridge, so as to'prevent thelatter from accidentally falling out in case the barrel B is pointedupward.

The operation is as follows: When the several parts are in the positionillustrated in Fig. 2, then the ejector O and the ejectorrod L are in aninnermost. position, and the hammer E, with the breech-block C, is in anoutermost position to permit of introducing the cartridge into thebarrel. lVhen this has been done, the firearm can be fired by merelypulling the trigger G, without first closing the breech, this actionserving to release the hammer E, which, by the mainspring F, is nowcaused to swing forward; and by means of its connection with the link Iimparting a swinging motion in a forward direction to the breech-blockO, and the latter consequently moveswith the hammer E but slightly inadvance of the same, until its shoulder 0* passes into engagement withthe free end of the spring J, so that the latter presses on saidshoulder C and causes a quick seating of the breech-block C on thebreech end of the barrel. This movement of the breech-block C is morerapid than the movement of the hammer E and said movement of thebreech-block is possible, owing to the slot I in the double link I.Thus, it will be seen that the breechblock 0 moves with the hammer Eduring part of the closing stroke, and during the remainder or finalseating movement the breechblock moves more rapidly than the hammer,owing to the action of the spring J. As the hammer E finally comes intocontact with the breech-block, it strikes the firingspin D, to fire thecartridge in the usual manner.

In order to extract the shell from the barrel, the hammer E is ,drawnback, and acts to draw back the breech-block C by the action of the linkI, and the latter, by moving the push-bar K forward, engages the latterwith the notch L- to push the ejector-rod L forward and compress'thespring N, (see Fig. 2,) and at the same time the forward notch L of theejector-rod L is disengaged from the I spring-dog P. See Fig. 2.) \Vhenthe hammer E moves into a lowermost position, then the lug K strikes theinclined arm R, so that the bar K is pushed downward, and the end Kmoves out of engagement with the notch L, to release the ejector-rod L,the dog P be-' ing meantime held out'of operative position by the lug Kso that the said rod L is pushed rearwardly by the action of itscompressed spring N, and this movement of the rod L causes the ejector Oto be pushed rearwardly, to push the shell out of the breech end of thebarrel. (See Fig. 4..)

After the shell has been ejected, the hammer E is set in a firingposition or at full-cock, as shown in Fig. 2, it being understood thatthe trigger G then engages by its sear G the shoulder E on the tumbler EThe operator now takes a new cartridge, pushes the same in the breechend and upon the ejector 0,

and then pushes the cartridge with the ejector, or he may pushtheejector home and: then insertacartridge. (See Fig. 2.) \Vhen thecartridge is inserted, the hammer is let down to a safety position, orat half-cock, the sear then engaging the notch E in the tunibler, bypressing lightly on thejtrigger.

"When it is desiredto fire again, the opera,

tor draws the hammer E into the firing posi..

tion, and in doing so causes the breech-block C to swing with it into arearmost position, and at the same time the. bar K pushes theejector-rod L into the position shown in Fig. 2 to compress the springN. The above operation is then repcate The hammer Eis formed with ashoulder E adapted to pass under the rear end of the breech-block C topositively lock the latter in place at the time the hammer strikes the.iiring-pin D, and the firin g takes place, whereby recoil of thebreech-block is entirely prevented. (See Fig. 3.) v I j v Now, it willbe seen that by the arrangement described, the firearm can be veryreadily ma n ipulated, insures a positive ejection of lb:

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shell after firing,'and insures a seating of the breech-block on thebreech end of the barrel before the hammer strikes the firing-pin.

Having thus fully described myinvention, I claim as new and desire tosecure by Letters Patent- 1. In a firearm, the combination of a pivotedbreech-block, a pivoted hammer, and a link pivotally connected to thehammer and to the breech-block, said link having its pivotal connectionwith the hammer a greater distance from the pivot whereon the hammerswings than its pivotal connection with the breech-block is distant fromthe pivot whereon the breech-block swings, substantially as set forth.

2. In a firearm, the combination of a pivoted breech-block having ashoulder, a pivoted hammer, a link pivotally connected to thehammer andto the breech-block, said link having its pivotal connection with thehammer a greater distance from the pivot whereon the hammer swings thanits pivotal connection with the breech-block is distant from the pivotwhereon the breech-block swings, said link having a loosevconnectionwith the breech-block whereby the hammer is permitted to moveindependently of the breechblock after the latter is seated, afiring-pin carried by the breech-block, and a spring arranged when thebreech-block is'moved, to engage the shoulder thereon and hold thebreech-block against the breeclnsubstantially as set forth.

3. In a firearm, the combination of a pivoted breech-block, a pivotedhammer, a scar, a extension on the hammer forming a tumbler and havingnotches to be engaged by the sear, pins projecting from opposite sidesof the breech-block at the lower end thereof, and a double link havingits sides pivoted at their rear ends to opposite sides of the tumbler,and having their respective forward ends slotted to receive pinsprojecting from opposite sides of the breech-block, substantially as setforth.

4. In a firearm, the combination of a barrel, a breech-block, a pivotedhammer, a sliding ejector, a spring connected to said ejector, and meansactuated by the movement of the hammer for placing said spring undertension, means to release said spring when the hammer is raised, wherebythe ejector is actuated to throw the discharged shell from the barrel,substantially as set forth.

5. In a firearm, the combination of a barrel, a breech-block, a pivotedhammer, an ejector, a spring operatively connected to said ejector,means actuated by the movement of the hammer for placing said springunder tension, a dog to hold the spring under tension, and meansactuated by the raising of the hammerto disengage said dog and permitsaid spring to operate the ejectorto throw the shell from the barrel,substantially as set forth.

6. In a firearm, the combination of a barrel, a breech-block, a pivotedhammer, an

ejector, an ejector-rod operatively connected to the ejector, a springconnected to the ejector-rod and adapted to actuate the same, and meansactuated by the movement of the hammer for first moving said ejector-rodto place said spring under tension and then releasing said ejector-rodto permit said spring to actuate the same, substantially as set forth.

7. In a firearm, the combination of a barrel, a breech-block, a pivotedhammer, an

ejector, an ejector-rod operatively connected ejector-rod, a push-barconnected to the hammer and arranged when the hammer is moved to engagesaid ejector-rod and move the same to compress the spring, a dogarranged to engage said ejector-rod to hold the spring under tension,and means for disengaging said pushbar and dog from the ejector-rod,substantially as set forth.

. 9. In a firearm, the combination of a barrel, a breech-block, apivoted hammer, an ejector, an ejector-rod operatively connected to theejector, a spring connected to the ejector-rod, a push-bar connected tothe hammer and adapted when the hammer is moved to engage theejector-rod and move the same to compress said spring, a dog arranged toengage the ejector-rod to hold said spring under tension, means fordisengaging the push-bar from the ejector-rod as the hammer is raised,and means actuated by the movement of said push-bar for disengaging thedog from the ejector-rod, substantially as set forth.

10. In a firearm, the combination of a stock, a barrel, a breech-block,a pivoted hammer, an ejector, an ejector-rod operatively connected tothe ejector, a spring connected to the ejector-rod, a push-bar connectedto the hammer and arranged when the hammer is moved to engage theejector-rod and move the same to place said spring under tension, a dogarranged to engage the ejector-rod to hold the spring under tension, alug on the stock arranged when the push-bar reaches the end of itsstroke to draw said push-bar out-of engagement with the ejector-rod, anda lug on the push-bar arranged to engage said dog, and move the same outof engagement with the ej ector-rod, substantially as set forth.

11. In a firearm, the combination of a stock, a barrel, a breech-block,a pivoted hammer, an ejector, a notched ejector-rod operativelyconnected to the ejector, a spring connected to the ejector-rod, alinkpivotally connecting the hammer and breech-block, a push-barpivarranged to engage said push-bar to hold the same normally engagedwith the notch in the ejector-rod, said pusll-bar-being arranged whenthe hammer is moved to engage said ejector-rod and move the same tocompress the spring connected therewith; a dog arranged to engage one ofthe notches in the ejector-rod to hold the spring connected with theejector-rod under tension, a lug on the stock arranged to engage saidpush-bar, to move the same out of engagement with the ejector-rod, and alug on the push-bar arranged to engage said dog to move the same out ofengagement With the ejector-rod, substantially as set forth.

12. In a firearm, the combination of a barrel, a breech-block, anejector, an ejector-rod operatively connected to the ejector and havinga longitudinal slot, means for operating said ejector a springoperatively connected to the breech-block, a stock, and a screw forholding said spring to the stock, said screw having engagement with theslot in the ejector, substantially as set forth.

MANUEL VICTOR DENGO;

